ExceptionInInitializerError when using leiningen
I'm a beginner getting started with using Clojure and Leiningen, and I've run into a problem trying to use a variety of lein commands. Although $ lein deps works fine, when I tried to use $ lein plugin install <plugin> , or even $lein help , I get the stack trace pasted below. I would guess that this is a setup issue, but I'm having trouble finding information online or finding the right place to start looking. When installing lein I followed the instructions on the Leiningen GitHub page . Exception in thread "main" java.lang.ExceptionInInitializerError (NO_SOURCE_FILE:0) at clojure.lang